LTC3025EDC-2#TRMPBF

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LTC3025EDC-2#TRMPBF is a micropower VLDO linear regulator from Analog Devices, featuring a fixed 1.2V output and 500mA current capability. It operates with an input voltage range of 1.4V to 5.5V and requires a BIAS supply between 2.7V and 5.5V. The device achieves a typical dropout voltage of 85mV at full load and maintains ±2% accuracy across temperature and load variations. Packaged in a compact 6-lead DFN (2mm × 2mm), it includes thermal overload protection, current limiting, and shutdown functionality.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Provides a stable 1.2V regulated output with high efficiency by sourcing load current directly from the IN pin while using a separate BIAS supply for internal circuitry.
• Ensures stability with ultralow ESR ceramic capacitors as small as 1µF, eliminating the need for bulky tantalum or electrolytic components.
• Integrates comprehensive protection mechanisms including short-circuit current limiting, thermal overload shutdown, and soft-start operation to prevent inrush currents.
• Features a dedicated SHDN pin that disconnects the load from both VIN and VBIAS, reducing quiescent current to negligible levels during inactive states.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Post-regulator stages for switching supplies to reject input noise and ripple
• Low voltage logic power supplies in portable electronic equipment
• Power management for cellular phones and handheld medical instruments
• Bias generation for DSP circuits requiring low noise and fast transient response

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix #TRMPBF indicates tape and reel packaging when ordering. Confirm the 'E' grade designation aligns with the required operating temperature range specifications. Ensure compatibility with automotive requirements if applicable, noting that specific automotive versions may carry different suffixes such as #W. Cross-reference the manufacturer part number against official distributor catalogs to confirm availability status.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 1.2V rail is required with minimal external component count. The device is suitable for battery-powered systems due to its low quiescent current consumption. Designers must ensure the BIAS voltage remains within the specified operational window relative to the input voltage. Consider the thermal resistance of the PCB layout, as the exposed pad must be soldered to a ground plane for optimal heat dissipation under heavy loads.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LTC3025 family of micropower VLDO regulators manufactured by Analog Devices. The family includes adjustable (LTC3025-1) and fixed voltage variants (LTC3025-2, -3, -4). All members share the same 6-lead DFN package and core architecture, differing primarily in their output voltage settings and reference configurations. The series is designed for high-efficiency regulation in space-constrained mobile applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include other parts from the LTC3025 family with matching output voltages, such as the LTC3025IDC-2#TRMPBF for industrial temperature grades. Verify pinout compatibility and thermal performance characteristics before substitution. No alternative manufacturers are explicitly confirmed in the provided documentation.